Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

• Delete cookies to remove the information websites have stored on your computer {web link}

• How to clear the Firefox cache {web link}

If there is still a problem, Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Did this help?

While you are in safe mode;

Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

How to disable Hardware Acceleration {web link}

https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster

https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix

https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram

https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding

https://support.mozilla.org/en-US/kb/firefox-takes-long-time-start-up

Thanks for the reply.

I had previously tried removing cookies, clearing the cache, running in safe mode with no addons running. Reinstalling Firefox and creating a new profile.

I also tried it with no hardware acceleration and even tried a different graphics driver, different window manager and compositor.

As I say it happens on another computer as well which is running version 70.0 It doesn't seem to be graphical but seems to be a long time to load the map data. Could Microsoft be doing something untoward?

It works fine in Chromium on the same PC. I will see if I can install a non Mint version of Firefox. Maybe that's the problem?

Download Firefox For All languages And Systems {web link}

Thanks but I'll need to do some research on how to install it for Linux without using the package manager.

It might mess up my system so I need to try it in a virtual machine. Just to get bing maps working that will be a lot of effort rather than just use chromium for that one site but I will look into it. Palemoon does it too so I think it's something fundamental with either Bing maps or Mozilla. Thanks again

https://support.mozilla.org/en-US/kb/install-firefox-linux Install Firefox on Linux This article will show you how to install Firefox on Linux.

Cheers. I'm a bit short on disk space to try that in a virtual machine but I will move some stuff around so I can. Loathed to change anything because I'm not Linux savvy enough to fix something I ruin.

Move things you don't use, and very large files, to an external hard drive.

You can check the Web Console and Network Monitor for possible causes of this slow loading.

• "3-bar" menu button or Tools -> Web Developer
• https://developer.mozilla.org/en-US/Tools/Web_Console
• https://developer.mozilla.org/en-US/Tools/Network_Monitor

The Network monitor is showing that the tiles are sometimes taking 6000-10000ms each to load but I think they all start at the same time then finish one after another as the time is longer for each one.

cor-el said

You can check the Web Console and Network Monitor for possible causes of this slow loading.

• "3-bar" menu button or Tools -> Web Developer
• https://developer.mozilla.org/en-US/Tools/Web_Console
• https://developer.mozilla.org/en-US/Tools/Network_Monitor